[Linux-HA] Failover 2 servers multiple IP's and SSL

Andrew Beekhof andrew at beekhof.net
Mon Jul 20 02:05:06 MDT 2009


On Sat, Jul 18, 2009 at 4:53 PM, Tom Potwin<wxman2 at gmail.com> wrote:
> Hi
>
> I've searched all over, and just gotten more confused. I need to set up a
> auto failover for my primary server. I have the same system backed up on to
> my second server in real time already. Both servers have two NIC's; one for
> the network connection to my firewall/router, and the other is just for the
> replication. I have a few sites that use SSL certificates, so I'm using
> separate public IP's on my router, matched to separate private IP's on the
> server. The addresses look like this:
> 192.168.31.202 - This is the main server address, also used for the common
> web sites that have no SSL's
> 192.168.31.203 - SSL site 1
> 192.168.31.204 - SSL site 2
> 192.168.31.205 - SSL site 3
> The secondary server uses 192.168.31.212 as the main server IP.
>
> What's confusing me is how do I make a setup that will detect the primary is
> down, switch to the secondary, then change the secondary IP's to be like the
> primary's.

It can't and shouldn't do this.
The IPs that get moved around need to be additional ones and not owned
by the machines themselves.

> I've found all kinds of tutorials to set up heartbeat, but I
> can't find details on this kind of set up. Am I looking for the wrong thing?
> Is heartbeat unable to do this? Do I need another software with it? The only
> thing I keep finding is load balancer setup's using a master IP address, but
> I don't need a load balancer, and I can't use a single master IP because of
> the SSL's.
> Please help, I'm getting a headache.
>
> Thanks, Tom
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